/Engine/Plugins/Media/PixelCapture/Source/PixelCapture/Public/PixelCaptureCapturerMultiFormat.h
Requests the output in a specific format. If this is the first request for the format and AddOutputFormat has not been called for the format then this call will return nullptr. Otherwise will return the buffer for the format provided the capture has completed.
The final buffer of a given format if it exists or null.
[TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [IPixelCaptureOutputFrame](API\Plugins\PixelCapture\IPixelCaptureOutputFrame) > RequestFormat ( int32 Format, int32 LayerIndex )